Centrifugal pump with volute casing, horizontal installation, single stage, overhung impeller, single and center end suction, separate coupling. Main dimensions and nominal performance in accordance with DIN 24255. Impeller is dynamically balanced. The shaft is sealed either by a soft packing or by a mechanical seal. It is protected with a renewable chrome nickel steel sleeve in the region of the shaft seal. Radial and axial forces on shaft are supported by two grease lubricated deep groove ball bearings on backside of impeller. An oil lubricated version is available on request. The pumps are built so that the complete pump rotor, including the bearing bracket can be dismantled as a unit towards the drive end, casing remains on piping system.